ACDelco ARM601-4 Digital Torque Wrench 1/2 Inch
- Measurement Standard: SAE (Inch)
- Head Style: Fixed Square
- End Style: Socket End
- Item Length: 17.3 inches
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A long, heavy wrench from a trusted automotive brand, best suited to jobs needing extra leverage rather than everyday light use.
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ASIN: B0081AQDIYModel: ARM601-4Category: Wrenches
Overview
ACDelco ARM601-4 wrench measuring about 440 millimeters (17.3 inches) long and weighing 3.9 pounds, a size and heft that point to heavy-duty or automotive service use rather than a light hand tool.
This wrench's size sets it apart from a typical hand tool: at nearly 4 pounds and over 17 inches long, it carries far more mass than a standard combination wrench. ACDelco's catalog leans toward professional and OEM automotive service, and this listing follows that pattern, pointing to a specialty design built for extra leverage on stubborn fasteners.
- Brand: ACDelco, model ARM601-4
- Length: 440 millimeters (about 17.3 inches)
- Weight: 3.9 pounds
- Category: automotive-oriented wrench
Who it's for
Mechanics or serious DIYers needing extra reach and leverage on a single large fastener are the target here, not shoppers looking for a compact everyday wrench. The listing does not specify jaw or drive size, so confirm fitment against your bolt or nut before ordering.
Pros and cons
- Long 440mm length adds leverage
- Solid 3.9 pound build for heavy pulls
- Backed by ACDelco's automotive reputation
- Jaw size and exact fit not listed
- Size and weight limit use in tight spaces
Performance notes
The combination of a 17-plus inch length and nearly 4 pounds of weight means most of the tool's value comes from leverage rather than speed of use, useful when breaking loose a seized or over-torqued fastener. That same size and weight make it less practical for tight engine bays or repetitive quick turns.
Specifications
| Brand | ACDelco |
|---|---|
| Model | ARM601-4 |
| Dimensions & fit | |
| Item Length | 17.3 incheshigher than 88% of 371 wrenches |
| Wrench Length Style | Standard |
| Item Weight | 3.9 poundshigher than 80% of 356 wrenches |
| Power & efficiency | |
| Voltage | 1.5 volts |
| Construction & materials | |
| Material Type | Metal |
| Color | Red |
| Finish Types | Polished |
| Included components | |
| Package Quantity | 1 |
| Unit Count | 1 |
| Included Components | 1 |
| Warranty & support | |
| Manufacturer Warranty Description | 1 Year Limited Warranty |
| Other details | |
| Measurement Standard | SAE (Inch) |
| Head Style | Fixed Square |
| End Style | Socket End |
| Operation Mode | Battery |
| Is Racheting | Yes |
| Is Non Sparking | No |
| Item Type Name | ARM601-4 |
| Set Name | Torque, Measurement, Peak & Trace |
| Item Torque | 147 ft-lb |
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Frequently asked questions
How long is the ACDelco ARM601-4 wrench?
About 440 millimeters, or roughly 17.3 inches.
How much does it weigh?
3.9 pounds, notably heavier than a standard hand wrench.
Is this suited to light household use?
Its length and weight point more toward heavy-duty or automotive service work than everyday light tasks.